Sorry Something went wrong Cascading List Lookup

I have a form with a three tier cascading list lookups. Let's call them State, City, ZipCode. I have no problems with the lookups themselves. Everything on the form works as you would expect. The problem I have is that for some States when I save the form I get the error message "Sorry, Something went wrong". No other details just "sorry". Everything else on the form is the same so I know it has to do with these lookups. I can save it with some states and then edit the document change it to another "problem" state and I get the error. It makes no sense to me, can anyone give me some insight on how to fix this?